U.S. patent number 11,287,018 [Application Number 17/026,226] was granted by the patent office on 2022-03-29 for display screen module structure.
This patent grant is currently assigned to ROE Visual Co., Ltd.. The grantee listed for this patent is ROE Visual Co., Ltd.. Invention is credited to Danhu Cai, Chen Lu, Shunwen Tian, Dries Vermeulen.
United States Patent |
11,287,018 |
Cai , et al. |
March 29, 2022 |
Display screen module structure
Abstract
The present invention discloses a display screen module
structure, comprising a mounting frame and a display screen mounted
cooperatively, wherein the display screen comprises a bottom shell,
a screen body arranged on a front surface of the bottom shell and a
power box arranged on a back surface of the bottom case, wherein
the display screen module structure further comprises a
manual-automatic integrated unloading device, the manual-automatic
integrated unloading device comprises an electric driving member, a
transmission member, an abutment member and a push-out rod. For a
display screen module with a short mounting position, a user
separates a mounting frame body from a display screen by operating
the rotation handle, thus reducing the power consumption, and being
more environmentally friendly.
Inventors: |
Cai; Danhu (Guangdong,
CN), Tian; Shunwen (Guangdong, CN), Lu;
Chen (Guangdong, CN), Vermeulen; Dries
(Guangdong, CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
ROE Visual Co., Ltd. |
Guangdong |
N/A |
CN |
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Assignee: |
ROE Visual Co., Ltd. (Shenzhen,
CN)
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Family
ID: |
68694631 |
Appl.
No.: |
17/026,226 |
Filed: |
September 19, 2020 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20210003199 A1 |
Jan 7, 2021 |
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Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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16066299 |
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10816066 |
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PCT/CN2018/089613 |
Jun 1, 2018 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F16D
1/10 (20130101); H05K 5/0017 (20130101); F16H
25/14 (20130101); H05K 5/0217 (20130101); F16D
2001/102 (20130101); F16H 1/16 (20130101) |
Current International
Class: |
F16D
1/10 (20060101); F16H 25/14 (20060101); H05K
5/02 (20060101); H05K 5/00 (20060101); F16H
1/16 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hall, Jr.; Tyrone V
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATIONS
This is a divisional application of the U.S. application Ser. No.
16/066,299 filed on Jun. 27, 2018, which is a national phase
application for PCT International Application No. PCT/CN2018/089613
filed on Jun. 1, 2018, the disclosures of which are incorporated
herein in their entireties by reference.
Claims
What is claimed is:
1. A display screen module structure, comprising a mounting frame
and a display screen mounted cooperatively, wherein the display
screen comprises a bottom shell, a screen body arranged on a front
surface of the bottom shell and a power box arranged on a back
surface of the bottom shell, wherein the display screen module
structure further comprises a manual-automatic integrated unloading
device; the manual-automatic integrated unloading device comprises
an electric driving member, a transmission member, an abutment
member and a push-out rod, wherein the push-out rod is movably
arranged along a length direction thereof, the electric driving
member and the push-out rod are respectively connected to the
transmission member, and the electric driving member drives the
push-out rod to butt against the abutment member through the
transmission member to increase spacing between the abutment member
and the electric driving member, wherein the manual-automatic
integrated unloading device further comprises a rotating handle
connected to the transmission member, and the rotating handle
drives the push-out rod to butt against the abutment member through
the transmission member to increase the spacing between the
abutment member and the electric driving member.
2. The display screen module structure according to claim 1,
wherein the electric driving member is arranged in the display
screen and the abutment member is arranged in the mounting frame;
or, the electric driving member is arranged in the mounting frame,
and the abutment member is arranged in the display screen.
3. The display screen module structure according to claim 1,
wherein the push-out rod is provided with a sliding slot along a
moving direction thereof, a guiding member matched with the sliding
slot is arranged in the power box, and the push-out rod is
supported on the power box through the guiding member.
4. The display screen module structure according to claim 1,
wherein the transmission member comprises a turntable and a movable
member, the movable member is arranged far away from the abutment
member, one end of the movable member is rotatably connected to the
push-out rod, and other end of the movable member is rotatably
connected to the turntable; a connected portion between the movable
member and the turntable is eccentrically arranged with a rotation
center axis of the turntable; and the electric driving member and
the rotating handle are respectively connected to the
turntable.
5. The display screen module structure according to claim 1,
wherein the transmission member comprises a rotatably arranged cam,
one end of the push-out rod far away from the abutment member abuts
against an outer edge of the cam, and the electric driving member
and the rotating handle are respectively connected to the cam.
6. The display screen module structure according to claim 1,
wherein the transmission member comprises a rotatably arranged
turntable and a rotatably arranged cam, and one end of the push-out
rod far away from abutment member abuts against an outer edge of
the cam; the manual-automatic integrated unloading device further
comprises a movable member, the movable member is arranged far away
from the abutment member, one end of the movable member is
rotatably connected to the push-out rod, and other end of the
movable member is rotatably connected to the turntable; a connected
portion between the movable member and the turntable is
eccentrically arranged with a rotation center axis of the
turntable; and the turntable is connected to the electric driving
member, the cam is fixedly connected to the rotating handle, or the
cam is connected to the electric driving member, and the turntable
is fixedly connected to the rotating handle.
7. The display screen module structure according to claim 1,
wherein the transmission member comprises two rotatably arranged
cams, and rotation center axes of the two cams are coincidently
arranged; outer edges of the two cams respectively butt against one
end of the push-out rod far away from the abutment member; and one
of the cams is connected to the electric driving member and other
cam is fixedly connected to the rotating handle.
Description
TECHNICAL FIELD
The present invention relates to the field of display screen
technologies, and more particularly, to a manual-automatic
integrated unloading device and a display screen module
structure.
BACKGROUND
Chinese Patent Application No. 201710233922.0 discloses a display
screen that can be automatically ejected from a mounting frame. An
unloading device is provided on the display screen. The mounting
frame is butted against by the unloading device so that relative
movement occurs between the unloading device and the mounting
frame, thus separating the display screen from the mounting frame.
To be specific, the unloading device comprises an electric driving
member, a transmission member, an abutment member and a push-out
rod, wherein the push-out rod is movably arranged along a length
direction thereof, the push-out rod and the abutment member are
matched, the electric driving member and the push-out rod are
respectively connected to the transmission member, and the electric
driving member drives the push-out rod to slid on the abutment
member through the transmission member to increase spacing between
the abutment member and the electric driving member (the abutment
member and/or the push-out rod is provided with an inclined plane,
and the inclined plane is a mating surface); the electric driving
member is arranged in the display screen, and the abutment member
is arranged in the mounting frame, vice versa.
At some point, maintenance personnel can manually separate the
display screen from the mounting frame manually (for example, when
the display screen is less than 2 meters from the ground), which
can reduce the power consumption. However, the above-mentioned
unloading device does not allow a user to perform a manual
operation; therefore, the existing unloading device needs to be
improved.
SUMMARY
The technical problem to be solved by the present invention is: to
provide a manual-automatic integrated unloading device and a
display screen module having the manual-automatic integrated
unloading device.
In order to solve the above technical problem, the technical
solution adopted by the present invention is as follows: a
manual-automatic integrated unloading device comprises an electric
driving member, a transmission member, an abutment member and a
push-out rod. The push-out rod is movably arranged along a length
direction thereof, the electric driving member and the push-out rod
are respectively connected to the transmission member, and the
electric driving member drives the push-out rod to butt against the
abutment member through the transmission member to increase spacing
between the abutment member and the electric driving member. The
manual-automatic integrated unloading device further comprises a
rotating handle connected to the transmission member, and the
rotating handle drives the push-out rod to butt against the
abutment member through the transmission member to increase the
spacing between the abutment member and the electric driving
member.
In order to solve the above technical problem, the technical
solution further adopted by the present invention is as follows: a
display screen module structure comprises a mounting frame and a
display screen mounted cooperatively, wherein the display screen
comprises a bottom shell, a screen body arranged on a front surface
of the bottom shell and a power box arranged on a back surface of
the bottom case, and the display screen module structure further
comprises the above-mentioned manual-automatic integrated unloading
device.
The present invention has the beneficial effects that: for a
display module with a short mounting position, the user can
increase the spacing between the abutment member and the electric
driving member by operating the rotating handle, so as to separate
a mounting frame body from a display screen without using the
electric driving member, thus reducing the power consumption, and
being more environmentally friendly.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a section view of a display screen module according to a
first embodiment of the present invention;
FIG. 2 is a structural schematic diagram of a display screen in a
display screen module according to the first embodiment of the
present invention (back surface);
FIG. 3 is a structural schematic diagram of the display screen in
the display screen module according to the first embodiment of the
present invention (front surface);
FIG. 4 is a structural schematic diagram of a manual-automatic
integrated unloading device in the display screen module according
to the first embodiment of the present invention (an abutment
member is hidden);
FIG. 5 is a structural schematic diagram of a rotating shaft in the
display screen module according to the first embodiment of the
present invention;
FIG. 6 is a structural schematic diagram of a cam in the display
screen module according to the first embodiment of the present
invention;
FIG. 7 is a structural schematic diagram of another cam in the
display screen module according to the first embodiment of the
present invention;
FIG. 8 is a simplified schematic diagram of a manual-automatic
integrated unloading device in a display screen module according to
a second embodiment of the present invention (front view);
FIG. 9 is a simplified schematic diagram of the manual-automatic
integrated unloading device in the display screen module according
to a second embodiment of the present invention (upward view);
FIG. 10 is a simplified schematic diagram of a manual-automatic
integrated unloading device in a display screen module according to
a third embodiment of the present invention (front view);
FIG. 11 is a simplified schematic diagram of the manual-automatic
integrated unloading device in the display screen module according
to the third embodiment of the present invention (upward view);
FIG. 12 is a simplified schematic diagram of a manual-automatic
integrated unloading device in a display screen module according to
a fourth embodiment of the present invention (front view); and
FIG. 13 is a simplified schematic diagram of the manual-automatic
integrated unloading device in the display screen module according
to the fourth embodiment of the present invention (upward
view).
REFERENCE NUMERALS
1 refers to mounting frame; 2 refers to power box; 3 refers to
electric driving member; 4 refers to transmission member; 41 refers
to elastic member; 42 refers to cam; 421 refers to limiting hole;
422 refers to buckling position; 423 refers to arc surface; 5
refers to abutment member; 6 refers to push-out rod; 61 refers to
wedge-shaped block, 62 refers to bulge; 7 refers to rotating
handle; 81 refers to sliding slot; 82 refers to guiding member; 9
refers to rotating shaft; 91 refers to turbine; 92 refers to
clamping segment; 10 refers to roller wheel; 11 refers to
turnplate; and 12 refers to movable member.
DETAILED DESCRIPTION
To describe the technical contents, the achieved objects, and the
effects of the present invention in detail, the following
description will be given with reference to the embodiments and the
accompanying drawings.
The most crucial idea of the present invention is: adding the
rotating handle connected to the transmission member, thus capable
of separating the display screen from the mounting frame by the
rotating handle.
Referring to FIG. 1 to FIG. 13, a manual-automatic integrated
unloading device comprises an electric driving member 3, a
transmission member 4, an abutment member 5 and a push-out rod 6.
The push-out rod 6 is movably arranged along a length direction
thereof, the electric driving member 3 and the push-out rod 6 are
respectively connected to the transmission member 4, and the
electric driving member 3 drives the push-out rod 6 to butt against
the abutment member 5 through the transmission member 4 to increase
spacing between the abutment member 5 and the electric driving
member 3. The manual-automatic integrated unloading device further
comprises a rotating handle 7 connected to the transmission member
4, the rotating handle 7 drives the push-out rod 6 to butt against
the abutment member 5 through the transmission member 4 to increase
the spacing between the abutment member 5 and the electric driving
member 3.
As can be seen from the above description, the beneficial effects
of the present invention are as follows: for a display module with
a short mounting position, the user can increase the spacing
between the abutment member and the electric driving member by
operating the rotating handle, so as to separate a mounting frame
body from a display screen without using the electric driving
member, thus reducing the power consumption, and being more
environmentally friendly.
Further, the transmission member 4 comprises a turntable 11 and a
movable member 12, the movable member 12 is arranged far away from
the abutment member 5, one end of the movable member 12 is
rotatably connected to the push-out rod 6, and the other end of the
movable member 12 is rotatably connected to the turntable 11; a
connected portion between the movable member 12 and the turntable
11 is eccentrically arranged with a rotation center axis of the
turntable 11; and the electric driving member 3 and the rotating
handle 7 are respectively connected to the turntable 11.
Further, the transmission member 4 comprises a rotatably arranged
cam 42, one end of the push-out rod 6 far away from the abutment
member 5 abuts against an outer edge of the cam 42, and the
electric driving member 3 and the rotating handle 7 are
respectively connected to the cam 42.
From the above description, it can be seen that the transmission
member has a simple structure and is easy to process.
Further, an elastic member 41 is further comprised. The elastic
member 41 is connected to the push-out rod 6 and used to drive the
push-out rod 6 to move towards the cam 42.
From the above description, it can be seen that the arrangement of
the elastic member can ensure that one end of the push-out rod far
away from the abutment member always butts against the cam, that
is, the push-out rod can be automatically retracted.
Further, the transmission member 4 comprises a rotatably arranged
turntable 11 and a rotatably arranged cam 42, and an end of the
push-out lever 6 far from the abutment member 5 butts against on an
outer edge of the cam 42.
A movable member 12 is further comprised, the movable member 12 is
arranged far away from the abutment member 5, one end of the
movable member 12 is rotatably connected to the push-out rod 6, and
the other end of the movable member 12 is rotatably connected to
the turntable 11; a connected portion between the movable member 12
and the turntable 11 is eccentrically arranged with a rotation
center axis of the turntable 11.
The turntable 11 is connected to the electric driving member 3, the
cam 42 is fixedly connected to the rotating handle 7, or the cam 42
is connected to the electric driving member 3, and the turntable 11
is fixedly connected to the rotating handle 7.
Further, an elastic member 41 is further comprised. The elastic
member 41 is connected to the push-out rod 6 and used to drive the
push-out rod 6 to move towards the cam 42.
Further, an output end of the electric driving member 3 is
connected to a rotating shaft 9, the rotating handle 7 is arranged
in the rotating shaft 9 and is rotatably arranged relative to the
rotating shaft 9, the turntable 11 connected to the electric
driving member 3 is fixed in the rotating shaft 9, or the cam 42
connected to the electric driving member 3 is fixed in the rotating
shaft 9.
From the above description, it can be seen that when the turntable
(or cam) fails to move the push-out rod away from the transmission
member due to a failure, a user can make the manual-automatic
integrated unloading device to work by controlling the electric
driving member or the rotating handle connected to the cam (or
turntable), which is beneficial for enhancing the user
experience.
Further, the transmission member 4 comprises two rotatably arranged
cams 42, and rotation center axes of the two cams 42 are
coincidently arranged; outer edges of the two cams 42 respectively
butt against one end of the push-out rod 6 far away from the
abutment member 5; and one of the cams 42 is connected to the
electric driving member 3 and the other cam 42 is fixedly connected
to the rotating handle 7.
Further, the transmission member 4 further comprises an elastic
member 41. The elastic member 41 is connected to the push-out rod 6
and used to drive the push-out rod 6 to move towards the cam
42.
Further, an output end of the electric driving member 3 is
connected to a rotating shaft 9, the rotating handle 7 is arranged
in the rotating shaft 9 and is rotatably arranged relative to the
rotating shaft 9, and the cam 42 connected to the electric driving
member 3 is fixed in the rotating shaft 9.
Further, the cam 42 comprises a first semi-circular segment, a
rectangular segment and a second semi-circular segment, two
opposite ends of the rectangular segment are respectively connected
to the first semi-circular segment and the second semi-circular
segment, and end faces of the other two ends of the rectangular
segment are both concave arc surfaces 423.
From the above description, it can be known that the concave arc
surfaces can allow one end of the push-out rod near the
transmission member to slide smoothly on an outer peripheral wall
of the cam, so as to avoid dead blockage between the push-out rod
and the cam.
A display screen module structure comprises a mounting frame 1 and
a display screen mounted cooperatively, wherein the display screen
comprises a bottom shell, a screen body arranged on a front surface
of the bottom shell and a power box 2 arranged on a back surface of
the bottom case, and the display screen module structure further
comprises the above-mentioned manual-automatic integrated unloading
device.
Further, the electric driving member 3 is arranged in the display
screen, and the abutment member 5 is arranged in the mounting frame
1; or, the electric driving member 3 is arranged in the mounting
frame 1, and the abutment member 5 is arranged in the display
screen.
Further, the electric driving member 3, the transmission member 4,
the push-out rod 6, and the rotating handle 7 are all arranged in
the power box 2, and the abutment member 5 is arranged in the
mounting frame 1.
It can be known from the above description that the electric
driving member, the transmission member, the push-out rod, and the
rotating handle are all arranged in the power box instead of
directly in the bottom shell, so as to prevent the screen body from
being deformed due to a reaction force of the push-out rod to make
a display effect of the display screen become worse.
Further, the push-out rod 6 is provided with a sliding slot 81
along a moving direction thereof, a guiding member 82 matched with
the sliding slot 81 is arranged in the power box 2, and the
push-out rod 6 is supported on the power box 2 through the guiding
member 82.
From the above description, it can be seen that the sliding groove
is arranged in the push-out rod, the guiding member is arranged in
the power box, and the shaking of the push-out rod during movement
can be reduced by the cooperation of the guiding member and the
sliding slot. In addition, the push-out rod is supported by the
guiding member so as to generate a certain distance from the power
box, in this way, a frictional force generated during the movement
of the push-out rod can be reduced, making the movement more smooth
without blockage, and more importantly, the guiding member can
provide a supporting force for the push-out rod, so as to avoid
separation of the push-out rod from the power box.
Further, two sliding slots 81 are provided, and one guiding member
82 is correspondingly arranged in each slot 81.
From the above description, it can be seen that the moving
direction of the push-out rod can be more accurate, and the
trajectory of the push-out rod after being stressed is not easily
deflected.
First Embodiment
Referring to FIG. 1 to FIG. 7, the first embodiment of the present
invention is as follows: as shown in FIG. 1 to FIG. 3, a display
module structure comprises a mounting frame 1, a display screen,
and a manual-automatic integrated unloading device mounted
cooperatively. The display screen comprises a bottom shell, a
screen body on a front surface of the bottom shell and a power box
2 arranged on a back surface of the bottom case. Preferably, the
power box 2 covers more than one fifth of area of the bottom
shell.
Referring to FIG. 1 to FIG. 4, the manual-automatic integrated
unloading device comprises an electric driving member 3, a
transmission member 4, an abutment member 5 and a push-out rod 6.
The push-out rod 6 is movably arranged along a length direction
thereof, the electric driving member 3 and the push-out rod 6 are
respectively connected to the transmission member 4, and the
electric driving member 3 drives the push-out rod 6 to butt against
the abutment member 5 through the transmission member 4 to increase
spacing between the abutment member 5 and the electric driving
member 3. The manual-automatic integrated unloading device further
comprises a rotating handle 7 connected to the transmission member
4, the rotating handle 7 drives the push-out rod 6 to butt against
the abutment member 5 through the transmission member 4 to increase
the spacing between the abutment member 5 and the electric driving
member 3. The electric driving member 3 is arranged in the display
screen, and the abutment member 5 is arranged in the mounting frame
1; or, the electric driving member 3 is arranged in the mounting
frame 1, and the abutment member 5 is arranged in the display
screen.
The power box 2 is provided with open window for the rotating
handle 7 to expose.
Referring to FIG. 3 and FIG. 4, in order to ensure that the
trajectory of the push-out rod 6 is linear, the push-out rod 6 is
provided with a guiding member 82, and the display screen (the
bottom shell or the power box 2) is provided with a guiding slot
matched with the guiding member 82. Or, the push-out rod 6 is
provided with the sliding slot, the display screen (the bottom
shell or the power box 2) is provided with the guiding member 82
matched with the guiding slot, and the push-out rod 6 is supported
on the power box 2 through the guiding member 82. In the
embodiment, the push rod 6 is provided with the sliding groove 81
serving as a guiding slot, and the power box 2 is provided with a
screw serving as the guiding member 82. One end of the screw
penetrates through the sliding slot 81. Therefore, the screw also
plays a role of mounting the push-out rod 6 to the power box 2 to
prevent the push-out rod 6 from being separated from the power box
2. Further, two sliding slots 81 are provided, and one guiding
member 82 is correspondingly arranged in each slot 81.
In the embodiment, the electric driving member 3, the transmission
member 4, the push-out rod 6, and the rotating handle 7 are all
arranged in the power box 2, and the abutment member 5 is arranged
in the mounting frame 1. Further, one end of the push-out rod 6 far
from the transmission member 4 is provided with a wedge block 61,
and the abutment member 5 is a roller matched with an inclined
plane of the wedge block 61. Preferably, as shown in FIG. 2 and
FIG. 4, an outer peripheral wall of the roller has a bulge 62 (or a
groove) arranged around a rotation center axis thereof, and the
inclined plane of the wedge block 61 is provided with a groove (or
bulge 62) matched with the bulge (or groove), so that the wedge
block 61 can be restrained, so as to avoid any sliding of the wedge
block 61 on a surface of the roller.
As shown in FIG. 4, as a specific embodiment, the transmission
member comprises an elastic member 41 and two rotatably arranged
cams 42, and rotation center axes of the two cams 42 are
coincidently arranged; outer edges of the two cams 42 respectively
butt against one end of the push-out rod 6 far away from the
abutment member 5; the elastic member 41 is connected to the
push-out rod 6 and used to drive the push-out rod 6 to move towards
the cam 42; and one of the cams 42 is connected to the electric
driving member 3 and the other cam 42 is fixedly connected to the
rotating handle 7. One end of the elastic member 41 is fixed in the
bottom shell or the power box 2. Preferably, the elastic member 41
is a tension spring located in the guiding slot, and one end of the
tension spring is fixed in the guiding member 82.
Referring to FIG. 4 and FIG. 5, in the embodiment, an output end of
the electric driving member 3 is connected to a rotating shaft 9,
and the rotating handle 7 is arranged in the rotating shaft 9 and
is rotatably arranged relative to the rotating shaft 9, a cam 42
connected to the electric driving member 3 is fixed on the rotating
shaft 9, and the rotating shaft 9 is rotatably arranged in the
bottom case. Preferably, a bearing is sleeved in the rotating shaft
9, and the rotating shaft 9 is mounted in the bottom shell through
the bearing.
As shown in FIG. 5 to FIG. 7, specifically, a lower portion of the
rotating shaft 9 is provided with a turbine 91, and an output end
of the electric driving member 3 is a worm matched with the turbine
91. A diameter of a middle portion of the rotating shaft 9 is
larger than a diameter of an upper portion of the rotating shaft 9,
and the middle portion of the rotating shaft 9 is provided with a
clamping segment 92. In the embodiment, the clamping segment 92 is
a notch. The cam 42 connected to the electric driving member 3 is
provided with a limiting hole 421 matched with the clamping segment
92, and the cam 42 is sleeved in the rotating shaft 9 through the
limiting hole 421; the cam 42 connected to the rotating handle 7 is
rotatably sleeved in an upper area of the rotating shaft 9, and is
further optimized in that the cam 42 connected to the rotating
shaft 7 is provided with a buckling position 422, the rotating
handle 7 is provided with a buckling member matched with the
buckling position, and the rotating handle 7 is detachably
connected to the cam 42, which has the advantage that the rotating
handle 7 can be removed to reduce a volume of the display screen
when necessary.
In addition, the two cams 42 are not in contact with each other.
After the above arrangement, the two cams 42 are mutually
independent. When the electric driving member 3 is blocked so that
the push-out rod 6 cannot be retracted, the user can remove the cam
42 sleeved in the clamping position, and then the push-out rod 6 is
controlled to telescope only by the rotating handle 7
subsequently.
It should be understood that in the embodiment, the two cams 42 are
both connected to the same rotating shaft 9. In other embodiments,
the two cams 42 may be connected to different rotating shafts 9
respectively.
As shown in FIG. 2, in the embodiment, the number of the push-out
rod 6 is two, the cam 42 is located between the two push-out rods
6, and the two push-out rods are arranged collinearly. Preferably,
a longitudinal direction of the push-out rod 6 coincides with a
longitudinal direction of the mounting frame 1, so that a linear
distance between the push-out rod 6 and magnets at four corners of
the screen body is closer, and a thrust force can be transmitted to
the mounting frame faster, so that the unloading device can push
out the screen body more preferably, accurately, and smoothly.
In the embodiment, the cam 42 comprises a first semi-circular
segment, a rectangular segment and a second semi-circular segment,
two opposite ends of the rectangular segment are respectively
connected to the first semi-circular segment and the second
semi-circular segment, and end faces of the other two ends of the
rectangular segment are both concave arc surfaces 423. When
contours of the first and second semi-circular segments are
completely the same, the rotation center axis of the cam 42 is at a
center of the rectangular segment. Further, outer contours of the
two cams 42 are completely identical.
Referring to FIG. 1 and FIG. 4, optionally, one end of the push-out
rod 6 butting against the cam 42 is provided with a roller wheel
10, and the roller wheel 10 rolls on a peripheral wall of the cam
42.
In the embodiment, the working principle of the manual-automatic
integrated unloading device is briefly described as follows: at the
beginning (when the display screen and the mounting frame are
connected), the push-out rod 6 abuts against the concave arc
surfaces 423 of the two cams 42, the electric driving member 3
drives the rotating shaft 9 to rotate so as to drive the cam 42
sleeved in the clamping segment 92 of the rotating shaft 9 to
rotate (in this process, the rotating handle 7 and the cam 42
connected to the rotating handle 7 do not rotate), and the first
and second semi-circular segments of the cam 42 butt against the
push-out rod 6, so that the push-out rod 6 moves far away from the
transmission member 4, so that the wedge block 61 in the push-out
rod 6 butts against the roller in the mounting frame to achieve the
purpose of separating the display screen from the mounting frame
body. Similarly, when the user operates the rotating handle 7,
similarly to the above process, the rotation of the rotating handle
7 does not cause the rotation of the rotating shaft 9. The rotating
shaft 9 only provides the mounting position for the cam 42
connected to the rotating handle 7.
Second Embodiment
Referring to FIG. 8 and FIG. 9, the second embodiment of the
present invention is a structure of another transmission member 4
proposed on the basis of the first embodiment, but differs from the
first embodiment in that: the transmission member 4 comprises a
turntable 11 and a movable member 12, the turntable 11 is rotatably
arranged on a power box (not shown in the figures) of a display
screen, and the movable member 12 is arranged far away from a
abutment member (not shown in the figures), one end of the movable
member 12 is rotatably connected to the push-out rod 6, and the
other end of the movable member 12 is rotatably connected to the
turntable 11. A connected portion between the movable member 12 and
the turntable 11 is eccentrically arranged with a rotation center
axis of the turntable 11, the electric driving member 3 and the
rotating handle 7 are respectively connected to the turntable 11,
and both the electric driving member 3 and the rotating handle 7
can make the turntable 11 rotate.
Third Embodiment
Referring to FIG. 10 and FIG. 11, the third embodiment of the
present invention is a structure of another transmission member 4
proposed on the basis of the first embodiment, but differs from the
first embodiment in that only one cam 42 is arranged in the
transmission member 4. To be specific:
The transmission member comprises a cam 42 that is rotatably
arranged on a power box (not shown in the figures) of a display
screen, one end of the push-out rod far away from a abutment member
(not shown in the figures) butts against an outer edge of the cam
42. The transmission member further comprises an elastic member
(not shown in the figures), one end of the elastic member is fixed
in the power box of the display screen, and the other end of the
elastic member is fixed in the push-out rod 6, the elastic member
is used to drive the push-out rod 6 to move towards the cam 42, the
electric driving member 3 and the rotating handle 7 are
respectively connected to the cam 42, and both the electric driving
member 3 and the rotating handle 7 can make the cam 42 rotate.
Fourth Embodiment
Referring to FIG. 12 and FIG. 13, the fourth embodiment of the
present invention is a structure of another transmission member 4
proposed on the basis of the first embodiment, but differs from the
first embodiment in that the transmission member 4 has two
transmission forms comprising movable member transmission and cam
transmission at the same time. To be specific, the transmission
member 4 comprises a turntable 11 rotatably arranged in a power box
of a display screen (not shown in the figures) and a cam 42
rotatably arranged in the power box of the display screen, and
further comprises a movable member 12, the movable member 12 is
arranged far away from a abutment member (not shown in the
figures), one end of the movable member 12 is rotatably connected
to the push-out rod 6, and the other end of the movable member 12
is rotatably connected to the turntable 11. A connected portion
between the movable member 12 and the turntable 11 is eccentrically
arranged with a rotation center axis of the turntable 11; and one
end of the push-out rod 6 far away from the abutment member butts
against an outer edge of the cam 42, and an elastic member (not
shown in the figures) is further comprised. One end of the elastic
member 41 is fixed in the power box of the display screen, the
other end of the elastic member is fixed in the push-out rod 6, and
the elastic member is used to urge the push-out rod 6 to move
towards the cam 42. In the embodiment, the turntable 11 is
connected to the electric driving member 3, and the cam 42 is
fixedly connected to the rotating handle 7. In other embodiments,
the cam 42 is connected to the electric driving member 3, and the
turnplate 11 is fixedly connected to the rotating handle 7.
Preferably, the rotation of the turntable 11 and the rotation of
the cam 42 do not interfere with each other.
An output end of the electric driving member 3 is connected to a
rotating shaft 9, the rotating handle 7 is arranged in the rotating
shaft 9 and is rotatably arranged relative to the rotating shaft 9,
and the turnplate 11 connected to the electric driving member 3 is
fixed in the rotating shaft 9. Similarly, in other embodiments, the
cam 42 connected to the electric driving member is fixed in the
rotating shaft 9.
In summary, according to the manual-automatic integrated unloading
device and the display screen module structure provided by the
present invention, for a display screen module with a short
mounting position, the user can separate the mounting frame body
from the display screen by operating the rotation handle, thus
reducing the power consumption, and being more environmentally
friendly; when the turntable (or cam) fails to move the push-out
rod away from the transmission member due to a failure, a user can
make the manual-automatic integrated unloading device to work by
controlling the electric driving member or the rotating handle
connected to the cam (or turntable), which is beneficial for
enhancing the user experience; the concave arc surfaces can allow
one end of the push-out rod near the transmission member to slide
smoothly on an outer peripheral wall of the cam, so as to avoid
dead blockage between the push-out rod and the cam; and the
electric driving member, the transmission member, the push-out rod,
and the rotating handle are all arranged in the power box instead
of directly in the bottom shell, so as to prevent the screen body
from being deformed due to a reaction force of the push-out rod to
make a display effect of the display screen become worse.
The foregoing descriptions are merely embodiments of the present
invention, but are not intended to limit the patent scope of the
present invention. All equivalent transformations made using the
description of the present invention and the accompanying drawings,
or being used directly or indirectly in other related technical
fields, are similarly included in the protection scope of the
present invention.
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